Ocaml Cheat Sheet (DRAFT) by lili_prrt

unit	void
int	integer
float
bool	stdbool.h
char	'A'
string	"­hel­lo"
'a list	head :: tail [1;3;2]
'a array	[|5;7;8|]

t1...tn	type inféré
let tuple = (a,b,c,d)
let (a,b,c) = tuple
fst / snd

let x=ref 3	variable mutable
x := 4 ;	affect­ation
!x	lecture
s.[0]	lecture string
t.(0)	lecture tab
t.(0) <- x;	écriture tab
s1 ^ s2	concat­énation
❗ string = immuables

type record =

{ field1 : bool;

mutable field2 : int; }

let r = {field1= true ; field2 = 3;}

let r' = { r with field1­=false }

r.field2 <-4;

let {field­1=v­ar_­a;_}=r

type enum =

|cst

|pair of string*int

let c = cstt

let c = Pair ("ba­r", 3)

while ... do ...done;	❗creer variable mutable
for i=... to ... do ...done;	i innacc­essible
for i= .... dowto ... do ...done;	à l'envers

raise Invali­d_a­rgument "­bla­bla­"	"­bla­bla­"= mess
raise Divisi­on_­by_zero
try ...
with
|Divis­ion­_by­_zero -> ....
|Inval­id_­arg­ument mess->	mess est utilisable